(Spoiler alert!)

Wooden Masks - novices that have just joined in. Have the lowest standing.

Stone Masks- unproven players that were already in the faction for some time but haven't participated in enough missions to prove themself as capable of listening to orders.

Iron Masks - Core members. They are full members of the faction. They are considered to be relatively trustworthy and have been in faction for a long time. They have full access to all facilities, like the rune-enchanting service and any future services, like access to mounts.

Brass Masks - Can be considered to be officers. They have the right to command iron-masked players and lower. They are trustworthy enough, knowing the deep secrets of the faction, like the truth about MC being a dragon. They drank the blood of the volcano dragon, making them dragonkins.

Bronze Masks - The currently highest rank that drank stronger blood of lightning volcano dragons, giving them additional lightning powers and even stronger bonuses.

Special masks:

Priest Masks: Their variant exists for every standard mask like wood, stone etc. They are worn by priest players of respective ranks. They are decorated with silver scale patterns to make them easily distinguishable as members of the priesthood.